This page describes the Shimadzu Axial Magnet Bearing (MB) (2) Assembly — an OEM option part used for repair and maintenance of TMP series molecular pumps. The assembly is the original replacement component designed to restore axial magnetic support and rotor axial position control in affected pumps, ensuring reliable high‑vacuum operation and long service life.
Product summary: Axial Magnet Bearing (2) Assy — Original parts repair for TMP series pumps. This assembly replaces the axial electromagnetic bearing module that stabilizes the rotor along the pump axis and works together with the radial magnetic bearings and control electronics.
- Primary function: Provide axial magnetic centering and damping for the rotor to maintain optimal rotor clearance and prevent axial contact during high‑speed operation.
- Compatibility: Designed for TMP‑2003 and TMP‑3603 series molecular pumps (and compatible TMP variants in the same family).
- Condition: OEM original spare part — intended for direct repair/replacement in field service or factory rebuilds.
Key features:
- Precisely manufactured magnetic core and coil assembly for repeatable axial force characteristics.
- Vacuum‑compatible materials and insulation rated for molecular pump environments.
- Plug‑and‑play mechanical interface with original Shimadzu mounting points to minimize rework.
- Tested to match original axial stiffness and damping profiles specified by the pump manufacturer.
Installation and handling notes:
- Only qualified service technicians should perform replacement. Follow the pump’s service manual for disassembly and reassembly sequence.
- Observe ESD precautions and maintain a clean work area; avoid contaminating magnetic surfaces and electrical connectors.
- Inspect mating surfaces, O‑rings and fasteners; replace any damaged seals before reassembly.
- After installation, perform rotor spin‑up and balancing checks per manufacturer procedures and run the pump through its diagnostic routines.
Routine inspection & maintenance:
- Visually inspect the axial bearing assembly during any pump tear‑down for wear, coil damage or insulation degradation.
- Verify electrical continuity and insulation resistance of the coil before final assembly.
- Store spare assemblies in a clean, dry environment away from strong magnetic fields and corrosive agents.
Ordering and authenticity:
- This part is supplied as an OEM option part for Shimadzu TMP series pumps. When ordering, confirm the pump model and serial number with your supplier to ensure compatibility.
- For genuine original spare parts and service information, refer to the manufacturer’s option parts listings or authorized distributors. See the manufacturer’s support page for non‑standard maintenance parts: Shimadzu molecular pump non-standard maintenance parts.
- Examples of repair support and options are available through the parts catalog and service pages: Shimadzu Option Parts catalog.
Packing, delivery and warranty:
- Parts are shipped in anti‑static, moisture‑resistant packaging with protective cushioning to prevent mechanical shock.
- Warranty terms depend on the supplier; verify warranty coverage and return policies at time of purchase.
- If you require assistance identifying the correct assembly for your pump model, consult the technical support resources: Original repair parts for TMP series.
If you need service guidance, part numbers, or help confirming fitment for a specific pump serial number, contact your authorized service provider. For additional non‑standard maintenance parts and related option parts, review the dedicated product support page: Axial MB 2 Assy details and option parts.
